gandcrab | 343137b587844a02d11e5ba3557e71604889aefba8182db1942ff05bacd5d317

Analysis

max time kernel
145s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
16/07/2023, 08:38

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General

Target

5beaee3f0c4fa6_JC.exe
Size

145KB
MD5

5beaee3f0c4fa66759c7f3b97037024e
SHA1

609970dfb54f623a88dc085e68d6b51c68bd613a
SHA256

343137b587844a02d11e5ba3557e71604889aefba8182db1942ff05bacd5d317
SHA512

72044abce5632d12e1d6de9481111e4ecab400c936e3cf39e1bb89297cc133d2f702c90f8a4e3fcc5f3521226a19b6acafd8596cb9ace04a17fd680e4491c29f
SSDEEP

3072:rYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:ryOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/4068-133-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/4068-137-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\ifqaekymdiq = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5beaee3f0c4fa6_JC.exe"	5beaee3f0c4fa6_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce	5beaee3f0c4fa6_JC.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\G:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\H:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\I:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\K:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\Q:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\V:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\A:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\J:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\L:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\S:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\Y:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\Z:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\U:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\W:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\E:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\M:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\O:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\P:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\R:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\T:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\B:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\N:	5beaee3f0c4fa6_JC.exe
File opened (read-only)	\??\X:	5beaee3f0c4fa6_JC.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	5beaee3f0c4fa6_JC.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	5beaee3f0c4fa6_JC.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	5beaee3f0c4fa6_JC.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4068	5beaee3f0c4fa6_JC.exe
4068	5beaee3f0c4fa6_JC.exe
4068	5beaee3f0c4fa6_JC.exe
4068	5beaee3f0c4fa6_JC.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 4068 wrote to memory of 1972	4068	5beaee3f0c4fa6_JC.exe	88
PID 4068 wrote to memory of 1972	4068	5beaee3f0c4fa6_JC.exe	88
PID 4068 wrote to memory of 1972	4068	5beaee3f0c4fa6_JC.exe	88
PID 4068 wrote to memory of 1636	4068	5beaee3f0c4fa6_JC.exe	95
PID 4068 wrote to memory of 1636	4068	5beaee3f0c4fa6_JC.exe	95
PID 4068 wrote to memory of 1636	4068	5beaee3f0c4fa6_JC.exe	95
PID 4068 wrote to memory of 2260	4068	5beaee3f0c4fa6_JC.exe	97
PID 4068 wrote to memory of 2260	4068	5beaee3f0c4fa6_JC.exe	97
PID 4068 wrote to memory of 2260	4068	5beaee3f0c4fa6_JC.exe	97
PID 4068 wrote to memory of 1172	4068	5beaee3f0c4fa6_JC.exe	101
PID 4068 wrote to memory of 1172	4068	5beaee3f0c4fa6_JC.exe	101
PID 4068 wrote to memory of 1172	4068	5beaee3f0c4fa6_JC.exe	101
PID 4068 wrote to memory of 4460	4068	5beaee3f0c4fa6_JC.exe	110
PID 4068 wrote to memory of 4460	4068	5beaee3f0c4fa6_JC.exe	110
PID 4068 wrote to memory of 4460	4068	5beaee3f0c4fa6_JC.exe	110
PID 4068 wrote to memory of 1016	4068	5beaee3f0c4fa6_JC.exe	112
PID 4068 wrote to memory of 1016	4068	5beaee3f0c4fa6_JC.exe	112
PID 4068 wrote to memory of 1016	4068	5beaee3f0c4fa6_JC.exe	112
PID 4068 wrote to memory of 1860	4068	5beaee3f0c4fa6_JC.exe	114
PID 4068 wrote to memory of 1860	4068	5beaee3f0c4fa6_JC.exe	114
PID 4068 wrote to memory of 1860	4068	5beaee3f0c4fa6_JC.exe	114
PID 4068 wrote to memory of 1396	4068	5beaee3f0c4fa6_JC.exe	117
PID 4068 wrote to memory of 1396	4068	5beaee3f0c4fa6_JC.exe	117
PID 4068 wrote to memory of 1396	4068	5beaee3f0c4fa6_JC.exe	117
PID 4068 wrote to memory of 4416	4068	5beaee3f0c4fa6_JC.exe	119
PID 4068 wrote to memory of 4416	4068	5beaee3f0c4fa6_JC.exe	119
PID 4068 wrote to memory of 4416	4068	5beaee3f0c4fa6_JC.exe	119
PID 4068 wrote to memory of 1240	4068	5beaee3f0c4fa6_JC.exe	121
PID 4068 wrote to memory of 1240	4068	5beaee3f0c4fa6_JC.exe	121
PID 4068 wrote to memory of 1240	4068	5beaee3f0c4fa6_JC.exe	121
PID 4068 wrote to memory of 2012	4068	5beaee3f0c4fa6_JC.exe	123
PID 4068 wrote to memory of 2012	4068	5beaee3f0c4fa6_JC.exe	123
PID 4068 wrote to memory of 2012	4068	5beaee3f0c4fa6_JC.exe	123
PID 4068 wrote to memory of 3836	4068	5beaee3f0c4fa6_JC.exe	125
PID 4068 wrote to memory of 3836	4068	5beaee3f0c4fa6_JC.exe	125
PID 4068 wrote to memory of 3836	4068	5beaee3f0c4fa6_JC.exe	125
PID 4068 wrote to memory of 2956	4068	5beaee3f0c4fa6_JC.exe	127
PID 4068 wrote to memory of 2956	4068	5beaee3f0c4fa6_JC.exe	127
PID 4068 wrote to memory of 2956	4068	5beaee3f0c4fa6_JC.exe	127
PID 4068 wrote to memory of 3404	4068	5beaee3f0c4fa6_JC.exe	129
PID 4068 wrote to memory of 3404	4068	5beaee3f0c4fa6_JC.exe	129
PID 4068 wrote to memory of 3404	4068	5beaee3f0c4fa6_JC.exe	129

C:\Users\Admin\AppData\Local\Temp\5beaee3f0c4fa6_JC.exe
"C:\Users\Admin\AppData\Local\Temp\5beaee3f0c4fa6_JC.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4068
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1972
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1636
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2260
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1172
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:4460
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1016
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1860
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1396
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:4416
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1240
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2012
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3836
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2956
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3404

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4068-133-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4068-137-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download